CAIE S1 2003 November — Question 3

Exam BoardCAIE
ModuleS1 (Statistics 1)
Year2003
SessionNovember
TopicNormal Distribution
TypeStandard two probabilities given
3 In a normal distribution, 69\% of the distribution is less than 28 and 90\% is less than 35. Find the mean and standard deviation of the distribution.
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